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STU-I secure telephone desk set. Electronics were housed in a separate cabinet.

The STU-I, like its successors sometimes known as a "stew phone", was a secure telephone developed by the U.S. National Security Agency for use by senior U.S. government officials in the 1970s.[1]

STU-I cabinet with desk set on top. The person talking is U.N. Ambassador Andrew Young, calling from New York City during the Israel-Egypt peace talks in the Carter administration.
STU-I cabinet front door open.

See also[edit]


  1. ^ "STU-I Secure Phone". www.cryptomuseum.com. Retrieved 2022-09-17.

External links[edit]